Magnetic Bearing Concentricity Adjustment Method

Abstract

A method for adjusting the coaxiality of a magnetic bearing, comprising the steps of: S1, assembling an adjustment block with a tapered hole on the small end face of the left gyro room and / or the right gyro room of the magnetic levitation control moment gyroscope; S2, processing the left gyro room and / or The inner hole of the magnetic bearing of the right gyro room and the taper hole of the adjustment block ensure that the inner hole of the magnetic bearing and the taper hole of the adjustment block are concentric; S3, the processing mandrel, the tapered surface at both ends of the mandrel and the taper hole on the adjustment block Matching; S4, thread the process mandrel into the taper hole of the adjustment block of the left gyro room and / or the right gyro room; S5, adjust the right (left) gyro room through the tapered surfaces at both ends of the process mandrel and the taper hole of the adjustment block With the installation position of the middle gyro house, fasten the left gyro house and / or the right gyro house and the middle gyro house with screws and assemble the positioning pins. The invention adjusts the coaxiality of the magnetic bearing by adopting the method of positioning the tapered surfaces at both ends of the process mandrel and the tapered hole of the adjustment block, which reduces the difficulty of combined grinding of the magnetic bearing and improves the precision of the coaxiality of the magnetic bearing.

Description

technical field [0001] The invention relates to the field of magnetic bearings in control moment gyroscopes, in particular to a method for adjusting the coaxiality of the magnetic bearings. Background technique [0002] The inertial actuator is the core actuator commonly used for attitude control of various satellites, space stations and other spacecraft platforms. Magnetic levitation control moment gyroscope is a new type of spacecraft attitude control system. It is supported by magnetic bearings. Compared with mechanical bearing supported gyroscopes, it has obvious advantages in control accuracy and service life. Long life and other outstanding advantages, so it has been widely used. [0003] The magnetic levitation control moment gyro is composed of a left gyro house, a middle gyro house, a right gyro house and a flywheel rotor assembly, in which the magnetic bearings are respectively installed on the left and right gyro houses. [0004] In order to achieve high-precisi...

AI Technical Summary

Problems solved by technology

[0005] However, the existing combined grinding processing method is difficult to control the precision due to the high processing difficulty, and it is difficult to meet the high-precision requirements of the coaxiality of the inner hole of the magnetic bearing.

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